Allah will say, “This is the Day when the truthful will benefit from their truthfulness.” For them are gardens [in Paradise] beneath which rivers flow, wherein they will abide forever, Allah being pleased with them, and they with Him. That is the great attainment.
Meaning:-
Beneath: below; in or to a lower place, position, underneath
Abide: to stay or live somewhere. : to remain or continue.
Attainment: the action or fact of achieving a goal toward which one has worked.